Siemens Sinamics G120 Function Manual page 93

Components in separate electrical cabinets or components not installed in an electrical cabinet
A two-channel cable connection is required when installed in separate electrical cabinets - or
when connecting components not installed in an electrical cabinet to an electrical cabinet. You
must protect the cables between the I/O modules and the inverter against cross and short-
circuits - or ensure that a cross or short-circuit results in a discrepancy error.
Figure 4-43
Figure 4-44
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
Connecting a PM-switching ET 200pro module
Connecting the PP switching module SM326
4.4 Controlling via a fail-safe digital input
Installing
93